Process of purifying water.



J. E. ANGELL. PROCESS OY PURIYYING WAT?.

APPLICATION ULEB YEE-26. 1907.

Patented ny 26, 1.910,

52 Ven.

UNITED STATES PATENT oEEioE.

JOHN E. ANGELL, OF ST. LOUIS, MISSOURI.

PROCESS or URIFYJNG WATER.

auf), i 4s.

Specieati'on of Letters Patent. l Patented July 2G, 1910.

Driginal application led April 27, 1906, Serial No. 314.068. Divided ami this applifation tiled February 26,

1907. Serial No. 359.352.

To all uriom. it may' concern:

Be it known that l. Joux` E. Ascari.. a i citizen of' the Tinted States, residing at St. f Louis, Missouri, have invented a new and useful Process ot' Purifying 'ater. of which the tfilowing is a specification. l l

This invention relates to processes for clnrityinp and purityingr Water, and it coui sisis of the novel features and essential steps hereinafter' described and then particularly i pointed ont. in the claims.

"fhispplication is divisional and a contii nation of my former application for patint for a water puritier and claritier, tiled April 2T. 1906, Serial No, 314,055. and coniprises the process ot purifying and clarifyingv Water by the apparatus in said application disclosed and claimethor by mechanisms involving the saine or equivalent operations to attain the saine results. 1

The process consists, broadly, in mixing a stream of ivater to be purified with a supply of sonic heated reagent, Within a heater tank; and it involves the preparation of the l reagent under the influence of the heat within the purifier, and the introduction or ejection of the reagent into the incoming water, and their thorough coniiningling and mixture. ltalso involves the agitation of the, reagent to prevent crystallization and sedimentation thereof and the. utilization of the agitating agent vto eject or supply the reagent into the water supply.

.To accomplish these steps and purposes l have found the apparatus described iii iny a )plie-ation above referred to to be highly e cient. It is obvious, however, that other species of apparatus may be utilized to practice this invention, for which reason theclaiins for the process could not be allowed in the saine application with the claims for the apparatus. necessitating the tilingof scparate applications, one for the prmess and one for the apparatus. 'lhis` application, therefore, is in continuation of iny said foriner application. and is for the process of purifying and clarifying water by the pi'ocess disclosed in said application, whether bythe specitic means therein disclosed or by other means.

For convenience7 and t0 simply cross-reference between the two applications. l have shown iii the accompanying drawing the same embodiment of mechanism for practicing the invention that is disclosed in the cti-pending application above identified. said embodiment being in a heater known as an open heater. in the description 0f the process reference will be inade to the apparatus. the construction and arrangement of which are fully described.

ln the apparatus illustrated for the practice of the invention A indicates a feedivater beater into .vhicli steam 1s admitted through a pipe 1 :a ste-ani and oil separator L. and a conncctiiijfr passage -l. trap 3 is arranged in connection with the separator to receive and discharge the separated oil and water. A pipe l* serves as an outlet for the steam from the heater.

'ithin the heater A are a multiplicity of trays 5 arranged in the path of the passing steam so that they :ire kept atthe saine teinperature as the steam. A. distributing trough 6 is mounted above the trays 5 to receive the water charged with the reagent and cause mixture and distribution thereof on the trays when-ce it flows and is eventually deposited in heated condition upon a filter bed 7 in the bottoni of the heater. It will be observed that the steam is free to circulate between and around the pans 5 so that the water wiil he raised to the temperature, substantially, of the steam. An ove`rflow pipe 8 leads from the trap 3 into the heater and is provided with an open upper end, thereby determining the altitude to which the water in. the heater may rise. The filter bed T is arranged some distance above the bottoni of the heater, thereby forming a chamber which receives the purified water which percolates'through the filter bed. A pipe 10 leads from the purified water chainber to the boiler or other destination. A valve controlled pipe 9 leads from the bottoni of the purified Water chamber and affords convenient means for drawing ofi any amount of water :is desired.

A feed-water pipe l1 leads into the heater near the top and terminates inunediatebr above the (linrilaiting trough G into which the water is discharged. A valve 12 is located at a convenient position on the pipe l1 and atords ine-.ans to regulate the amount of water at" iter-d into the heater. The pipe i'i dischai .1 the water naar the outlet pipe lrt into laastetrough 6 from which 1t flo '5. expe to the steam. onto the travs agent is introduced into the tank 13, and

terminates near the bottom of said tank.

'18 into theI tank 1?; may he rufulated by a I 5 against, between. and around which the steam circulates as it passes toward the outlet. .A

13 indicates the chemical reagent tank which is located in an opening of the wall of the heater, and which extends a eonsiderable distance into the heater and being. for the most part. below the. maximaux water level, so that the contents of the tank will be kept het at about the sante temperature as the heated water. This condition most effectively thwarts the tendency of the reagent to cnvstallize. feed pipe 14 extends from a point near the bottom of the tank through the top thereof into the heater A and is provided with :1 lateral extension l5 on its upper end which delivers the clientical reagent into the distributing trough t3 Where itJ combines and is mixed with the feefl-wateiz An opening is provided whereA by the reafvcut mat be introduced into the tank, said opening heilig provided with suit-` able means 1G for closing the saine.

Any preferred reagent may be utilized in this apparatus, and if the powdered forni is used a sutiicient quantity or current of water to dissoire it 1s mixed therewith simultaneously with its application into the tank 13 and its exposure to the heat; in the heater, the water and reagentbeing supplied through the opening at 16.

A valve 17 communicates with the bottoni of the tank 13 and may he used to draw utf all the contents for the purposeof clean- 'ing the tank or oth'er purposes.

A pressure tank 18 is .sf-.cured in some suitable manner to the heater A charging or'pressure supply pipe 1!) leads into the tank 18. A valve 2t) 1s located at a convenient position in .said pipe, and is operable to admit or discharge the. pressure, or to prevent admission thereof into the tank. A cheek valve 31, of ordinary construction, is arranged in the top of the tank 18 and may be opened to admit air into the tank when the latter is being emptied. pipe .22 extends into the. tank 1S and supports a pressure reducing valve 23, of any of the Well known types, whereby the pressure in the tank may be reduced and maintained at the lower degree regardless of the rassure entering the tank. A pipe 2l leads rom the valve through the top f the tank 13 and The pressure thus admitted from the tank valve 24 located at a desirable position en the pipe 24. Y

ln operation of the apparat-ns described to practice the invention'the chemical re-v the pressure tank 18 is properly charged, the degree of pressure therein being regulated hy the valve :23. The-valve its is then .lng density, and, at the saine time, discharges a. quantitiA oi the. heated reagent through the. pipe 14 into the. vater distributing trough t. The pressure thus admitted into the tank 12- overcoincs the opposing pressure from thev hlater so that the required amount of the reagent will inevitably he supplied.assuming that the. various valves are properly adjusted.

It is obvious that other mechanism maj.v he utilized for the practice of this invention and prmcs.s.,a1nl`that there may he variations and alterations from the. identical course outlined within equivalent limits without in the least departing from the .spirit and scopi,A ot' my invention.

`What I claim and desire to secure by Letters Patent is:

1. The process of purifying tivater, consisting in circulating :steunt through an inclosure, subjecting a reagent. to the heat within the. inclosurc, and causing the reagent and the water to be purified to flow together across mixing devices, substantially as described.

The process of purifying water, Consisting in circulating steam through an inclosure, discharging water into the inclosnre. heating a reagent to the temperature of the contents ofthe inclosure, and discharging the. reagent.- into the water to be puriiied whileI the water is flowing.

Il. The process herein described, consisting in placing a reagent inside of a Water purifier, in applying the heat used in the puriticr to said reagent and in simultaneously introducing water into .said reagent, iu thereby producing :phot chemical sollition` and in introducing said solutio.1 while hot into the water to he purified.

l. 'l'he herein-describcd process, consisting in confining a reagent in a vessel extending in a \vater-pul'ifier and subjected to the heat contained therein` in introducing a quantity of water into the reagent so situated. in conducting from the vessel the resulting solution ina heated state, and in introducing such solution into the water tio be purified in advance of the purifyingpans of the purifier.v

In testimony whereof, I hereunto affix my signature to this specification this 23rd day of February, 1907,'in the presence of two witnesse.. i

J( )IIN ANGELL. [Ik 8.]

Witnesses:

J. I). Rieper, CuAnLas PicxLEs. 

